The shuffle plate doesn't turn: the photoelectric sensor is covered with reflectors before S6.

Many (missing) cards after the power off operation

In the process of licensing, there will be a power failure, and then a lot of cards will be generated on the power. The machine set up the memory program for the power outage during operation. Generally, there will be no problem, but in the process of operation, we should try to avoid the phenomenon of power failure.